Home / 141,489.32-195,251.16-77,827.12

Finding the Fourth Proportional to 141,489.32, 195,251.16 and 77,827.12

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Solution

The fourth proportional to 141,489.32, 195,251.16 and 77,827.12 is: 107,399.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,489.32 : 195,251.16 = 77,827.12 : x
  2. Step 2: Convert to fraction form
    141,489.32/195,251.16 = 77,827.12/x
  3. Step 3: Cross multiply
    141,489.32x = 195,251.16 × 77,827.12
  4. Step 4: Simplify right side
    141,489.32x = 15,195,835,459.46
  5. Step 5: Solve for x
    x = 15,195,835,459.46/141,489.32
  6. Step 6: Final answer
    x = 107,399.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.